Posted by **faizel** on Tuesday, December 18, 2012 at 11:10am.

The area of 3 adjacent faces of a cuboid are x,y,z.. if the volume is v , prove that [v]^2=xyz.

- maths --plse help me.. -
**Steve**, Tuesday, December 18, 2012 at 11:12am
if the edges are a,b,c

x = ab

y = bc

z = ac

v = abc, so

v^2 = (abc)^2

= a^2 b^2 c^2

= ab * bc * ac

= xyz

- maths --plse help me.. -
**faizel**, Tuesday, December 18, 2012 at 11:18am
thank you

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